TB 9-6625-2291-24
8. Transmit Verification
a. Performance Check
NOTE
When connecting and disconnecting optical fiber jumper cable,
hold cable just behind connector on strain relief boot while
rotating connector to prevent cable from twisting. Doing this
will prevent damage to optical surfaces at cable ends and TI
TRANSMIT and RECEIVE ports.
Avoid any excessive
movement of optical fiber jumper cable when making power
measurements.
(1) Install connector adapter FC (81000FI) to lightwave multimeter OPTICAL
INPUT port.
(2) Connect biconic end of optical fiber jumper cable to TRANSMIT port and other
end to lightwave multimeter OPTICAL INPUT port.
(3) Press TRANSMIT ON OFF switch to ON and rotate TRANSMIT ADJUST
knob fully clockwise until slight resistance is encountered.
(4) Set lightwave multimeter to measure dBm at 1310.0 nm.
(5) If lightwave multimeter indication is not greater than -32 dBm, perform b below.
NOTE
Maximum transmit level varies with fiber core diameter.
(6) Press TRANSMIT ON OFF switch to OFF.
b. Adjustments. Repeat 7 a above.
NOTE
If repeating 7 a above does not produce desired results, optical
fiber jumper cable may need replacing or repair as indicated.
9. Reference Level Verification
a. Performance Check
(1) Push LEVEL dBm pushbutton to (in).
(2) Remove FC end of optical fiber jumper cable from lightwave multimeter
OPTICAL INPUT port.
(3) Remove connector adapter FC (81000FI) from lightwave multimeter OPTICAL
INPUT port and install biconic (81000WI) connector adapter to lightwave multimeter
OPTICAL INPUT port.
(4) Carefully remove biconic end of optical fiber jumper cable from TRANSMIT port.
